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Glossary
Power over Ethernet (PoE)
A specification for providing both power and data to low-power network devices using a
single Category 5 Ethernet cable. PoE provides greater flexibility in the locating of access
point's and network devices, and significantly decreased installation costs.
RADIUS
A logon authentication protocol that uses software running on a central server to control
access to the network.
Roaming
A wireless LAN mobile user moves around an ESS and maintains a continuous
connection to the infrastructure network.
RTS Threshold
Transmitters contending for the medium may not be aware of each other. RTS/CTS
mechanism can solve this "Hidden Node Problem." If the packet size is smaller than the
preset RTS Threshold size, the RTS/CTS mechanism will NOT be enabled.
Service Set Identifier (SSID)
An identifier that is attached to packets sent over the wireless LAN and functions as a
password for joining a particular radio cell; i.e., Basic Service Set (BSS).
Session Key
Session keys are unique to each client, and are used to authenticate a client connection,
and correlate traffic passing between a specific client and the access point.
Shared Key
A shared key can be used to authenticate each client attached to a wireless network.
Shared Key authentication must be used along with the 802.11 Wireless Equivalent
Privacy algorithm.
Simple Network Management Protocol (SNMP)
The application protocol in the Internet suite of protocols which offers network
management services.
Simple Network Time Protocol (SNTP)
SNTP allows a device to set its internal clock based on periodic updates from a Network
Time Protocol (NTP) server. Updates can be requested from a specific NTP server, or
can be received via broadcasts sent by NTP servers.
Glossary-4
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